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Discussing rwhp in the 99-04 Forum. i was told that an 03 cobra has 490rwhp i also 390rwhp and 325rwhp. can ...

       

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Old September 5th, 2007, 10:37 AM   #1
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rwhp


i was told that an 03 cobra has 490rwhp i also 390rwhp and 325rwhp. can some one tell me want the accual rwhp from the factory is. by the way low rwhp was told to me by a GM guy
 

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Old September 5th, 2007, 10:49 AM   #2
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the 03 cobra's crank horsepower was rated at 390hp, but was later determined to be closer to 425, so the cobra probably has around 370-ish rwhp..
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Old September 5th, 2007, 11:11 AM   #3
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Originally Posted by BWAL09
the 03 cobra's crank horsepower was rated at 390hp, but was later determined to be closer to 425, so the cobra probably has around 370-ish rwhp..
+1 but with a few mods and a pulley swap they can push well over 500
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Old September 5th, 2007, 11:23 AM   #4
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the power rating from the factory is flywheel hp. this will give a better WOW factor. terminators are averaging around 360-380 rwhp stock, and is very easy to get a lot more than that.
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Old September 5th, 2007, 01:09 PM   #5
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Originally Posted by SWEET2KSTANG
the power rating from the factory is flywheel hp. this will give a better WOW factor. terminators are averaging around 360-380 rwhp stock, and is very easy to get a lot more than that.
thats just what i would have said. a pulley swap and a few bolts away from 500
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Old September 5th, 2007, 02:47 PM   #6
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Originally Posted by weems
Originally Posted by BWAL09
the 03 cobra's crank horsepower was rated at 390hp, but was later determined to be closer to 425, so the cobra probably has around 370-ish rwhp..
+1 but with a few mods and a pulley swap they can push well over 500
ive heard that before. define "few mods"
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Old September 5th, 2007, 02:48 PM   #7
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Old September 5th, 2007, 02:58 PM   #8
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Originally Posted by WilltheThrill
ive heard that before. define "few mods"
a buddy of mine had a pulley and tune on his '03 and was right around 500 rwhp

not sure what kind of dyno that was on
 
Old September 5th, 2007, 02:58 PM   #9
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ported blower,midpipe,catback,throtttlebody, cai and pulley swap
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Old September 5th, 2007, 06:28 PM   #10
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Originally Posted by 00SlvrStang
Originally Posted by WilltheThrill
ive heard that before. define "few mods"
a buddy of mine had a pulley and tune on his '03 and was right around 500 rwhp

not sure what kind of dyno that was on
what other mods did he have?
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Old September 5th, 2007, 06:30 PM   #11
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hey sonic, where in SC is Dalzell? north, south, east, west, central?

im from Greenville, sc. its in the upstate
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Old September 5th, 2007, 06:31 PM   #12
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A full exhaust, CAI and a pulley change wil do it.
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Old September 5th, 2007, 06:38 PM   #13
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Originally Posted by neckbonekat
A full exhaust, CAI and a pulley change wil do it.
all the way up to 500 hp? daaaaayum! how much boost does the smallest blower pulley make???
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Old September 5th, 2007, 07:01 PM   #14
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Originally Posted by WilltheThrill
Originally Posted by 00SlvrStang
Originally Posted by WilltheThrill
ive heard that before. define "few mods"
a buddy of mine had a pulley and tune on his '03 and was right around 500 rwhp

not sure what kind of dyno that was on
what other mods did he have?
he had some exhaust, but i think it was just catback
 
Old September 5th, 2007, 07:03 PM   #15
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Originally Posted by WilltheThrill
Originally Posted by neckbonekat
A full exhaust, CAI and a pulley change wil do it.
all the way up to 500 hp? daaaaayum! how much boost does the smallest blower pulley make???
somebody correct me if im wrong but i believe the lower pulley is what gives you the most hp and more boost....

my buddy has a lightning and he changed his lower pulley , exhaust , ported blower and a good dyno tune and put out 511/590....

the cobra has more potential than the l also
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Old September 5th, 2007, 07:40 PM   #16
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Originally Posted by WilltheThrill
hey sonic, where in SC is Dalzell? north, south, east, west, central?

im from Greenville, sc. its in the upstate
its about 40 min east of columbia. its right out the back gate of shaw air force base
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Old September 5th, 2007, 07:45 PM   #17
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Originally Posted by sonicblue
Originally Posted by WilltheThrill
hey sonic, where in SC is Dalzell? north, south, east, west, central?

im from Greenville, sc. its in the upstate
its about 40 min east of columbia. its right out the back gate of shaw air force base
my uncle was stationed at shaw afb up until about a year ago..

nice area up there..
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Old September 5th, 2007, 07:47 PM   #18
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yup its not so bad here, definitely better than some other places ive been stuck at
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Old September 5th, 2007, 09:38 PM   #19
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Originally Posted by sonicblue
Originally Posted by WilltheThrill
hey sonic, where in SC is Dalzell? north, south, east, west, central?

im from Greenville, sc. its in the upstate
its about 40 min east of columbia. its right out the back gate of shaw air force base
cool, man i would love to get stationed at Shaw, i think its a reserve only base now
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Old September 5th, 2007, 10:41 PM   #20
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nope still active duty f-16 base. whats ur afsc
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